| Locality | Postal Code |
|---|---|
| Postal/ZIP Codes in Atalaya, San Antonio | Y4600 XBI |
| Postal/ZIP Codes in Cerro Negro, San Antonio | Y4605 XAA |
| Postal/ZIP Codes in El Ceibal, San Antonio | Y4603 XAK |
| Postal/ZIP Codes in El Ollero, San Antonio | Y4605 XAF |
| Postal/ZIP Codes in La Toma, San Antonio | Y4605 XAC |
| Postal/ZIP Codes in Los Alisos, San Antonio | Y4605 XAD |
| Postal/ZIP Codes in Paño, San Antonio | Y4605 XAE |
| Postal/ZIP Codes in Perico de San Antonio, San Antonio | Y4605 |
| Postal/ZIP Codes in Río Blanco, San Antonio | Y4605 XAG |
| Postal/ZIP Codes in San Antonio, San Antonio | Y4605 |